參數(shù)資料
型號(hào)： SY89845U
廠商： Micrel Semiconductor,Inc.
英文描述： PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
中文描述： 精密白血病短脈沖消除2:1 1:2扇出和內(nèi)部終端復(fù)用器
文件頁(yè)數(shù)： 12/18頁(yè)
文件大?。?/td> 608K
代理商： SY89845U
Micrel, Inc.
SY89845U
May 2005
M9999-052405
hbwhelp@micrel.com
or (408) 955-1690
12
Power-On Reset (POR) Description
The SY89845U includes an internal power-on reset
(POR) function to ensure the RPE logic starts-up in
a known logic state once the power-supply voltage is
stable. An external capacitor connected between
V
CC
and the CAP pin (pin 16) controls the delay for
the power-on reset function.
The required capacitor value calculation is based
upon the time the system power supply needs to
power up to a minimum of 2.3V. The time constant
for the internal power-on-reset must be greater than
the time required for the power supply to ramp up to
a minimum of 2.3V.
The following formula describes this relationship:
C( F)
t
(ms)
12(ms/ F)
dPS
≥
As an example, if the time required for the system
power supply to power up past 2.3V is 12ms, then
the required capacitor value on pin 16 would be:
C(μF)
≥
1μF
C( F)
12ms
12(ms/ F)
≥
相關(guān)PDF資料
PDF描述
SY89845UMG PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
SY89845UMGTR PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
SY89858UMG PRECISION LOW POWER 1:8 LVPECL FANOUT BUFFER WITH INTERNAL TERMINATION
SY89858UMGTR PRECISION LOW POWER 1:8 LVPECL FANOUT BUFFER WITH INTERNAL TERMINATION
SY89858U PRECISION CML RUNT PULSE ELIMINATOR 2:1 MUX WITH 1:2 FANOUT AND INTERNAL TERMINATION
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SY89845U_10 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision CML Runt Pulse Eliminator 2:1 MUX
SY89845UMG 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2.5/3.3V 2:1 RPE/FSI CML MUX w/ 1:2 Fanout (I Temp, Green) RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SY89845UMG TR 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 2.5/3.3V 2:1 RPE/FSI CML MUX w/ 1:2 Fanout (I Temp, Green) RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
SY89845UMGTR 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision CML Runt Pulse Eliminator 2:1 MUX
SY89846U 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:1.5GHz Precision, LVPECL 1:5 Fanout with 2:1
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